CN102409282A - Low-temperature surface carburization method for titanium-aluminum-based intermetallic compound material - Google Patents
Low-temperature surface carburization method for titanium-aluminum-based intermetallic compound material Download PDFInfo
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- CN102409282A CN102409282A CN2011103604033A CN201110360403A CN102409282A CN 102409282 A CN102409282 A CN 102409282A CN 2011103604033 A CN2011103604033 A CN 2011103604033A CN 201110360403 A CN201110360403 A CN 201110360403A CN 102409282 A CN102409282 A CN 102409282A
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Abstract
The invention discloses a low-temperature surface carburization method for a titanium-aluminum-based intermetallic compound material. The method comprises the following steps of: (1) performing surface nano-crystallization on the surface of a TiAl-based alloy by using the conventional equipment and method; and (2) performing low-temperature carburization on the TiAl-based alloy subjected to surface nano-crystallization at the temperature of between 500 and 800 DEG C, and preparing a carburization layer with the thickness of 4 to 9 micrometers on the surface of a sample. By the low-temperature surface carburization method for the titanium-aluminum-based intermetallic compound material, the surface structure of the TiAl-based alloy is effectively improved, and the fatigue resistance, the abrasion resistance and the corrosion resistance are improved; and the method is low in cost and high in efficiency.
Description
Technical field
The present invention relates to a kind of surface cementation method, particularly relate to a kind of low-temperature surface carburizing treatment method that is applied to titanium aluminum based metal compound material.
Background technology
The TiAl base intermetallic compound shows the mechanical property with the distinct excellence of conventional alloys material because the atom long-range order of himself is arranged and special bonding mode.But its stretching plastic and fracture toughness property at room temperature is lower, and this is that actuatable slip system number is limited because in the long range ordered structure of intermetallic compound, and superstructure dislocation Bai Shi vector is big, and dislocation is handed over the slippage difficulty.Therefore, be different from the conventional alloys material, TiAl base alloy mainly is deformed into the master with mechanical twin at normal temperatures; And Al content is low more; Twin effect in distortion is obvious more, only after improving texturing temperature, receives heat activated effect; The mobility of various dislocations is improved, and just can show certain high temperature plasticity.And most failure procedure occurs in material surface, comprises repeated stress failure, corrodes fatigue, weares and teares and corrode or the like, and these failure procedures are all very responsive to the structure and the performance of bill of material surface layer.Therefore, the surface tissue that improves TiAl base alloy effectively will help to optimize its military service performance, promote its industriallization, the marketization is used and the effective excellent properties of this material of performance.
Surface cementation is a kind of thermo-chemical treatment technology of traditional raising material surface application performance, and method is simple, and treatment effect is good, is widely used in the production application aspect of metallic substance.Carbon is that TiAl base alloy wear-resisting property and high temperature oxidation resistance are all produced one of element of beneficial effect.At alloy layers such as TiAl base alloy surface formation carbide is the most simple and efficient approach that improves wear resistance.This laboratory has just been carried out in the nineties in last century and is utilized cementing process to form carbide lamella to improve its high temperature oxidation resistance and Study on Wear Resistance work at TiAl base alloy surface.Surface cementation is a kind of highly stable cementation process, in suitable temperature (1193K, 1233K or 1273K) TiAl base alloy is carried out surface cementation, can obtain the layer of even cementation zone.
In recent years; Colleges and universities such as Institutes Of Technology Of Taiyuan, Nanjing Aero-Space University, Chang An University, University of Science & Technology, Beijing have also carried out some significant exploratory studys with regard to TiAl base alloy surface carburization (carbonitriding, niobium carbon ooze altogether etc.), and are obtaining certain achievement aspect the improvement of its high-temperature oxidation resistant and performance such as wear-resistant.But the carburizing treatment conditions needed for TiAl base alloy is comparatively harsh, and Yin Wendu is higher, the treatment time is longer, and has increased production cost greatly, is badly in need of a kind of easy method and solves this difficult problem.
The making Nano surface technology that is proposed by scholars such as Lu Ke and Lv Jian is considered to from now on, and for some time can be applied to one of actual important technology of engineering with nano material.This technology be directly with the material surface of environment contact prepare certain thickness identical with basic material but have the upper layer of nanocrystalline structure, thereby performances such as the antifatigue of raising engineering materials, corrosion-resistant, rub resistance wearing and tearing.
Making Nano surface and surface cementation treatment process are combined, and possibly be important channels that overcomes above unfavorable factor even improve the conventional surface modification technology, might obtain excellent more material surface simultaneously.
Summary of the invention
Technical problem to be solved by this invention provides a kind of surface tissue of the effective TiAl of improvement base alloy, the low-temperature surface method for carburizing of the titanium aluminum based metal compound material that the cost that improves its fatigue resistance, wear-corrosion resistance is low, efficient is high.
In order to solve the problems of the technologies described above, the low-temperature surface method for carburizing of titanium aluminum based metal compound material provided by the invention comprises the steps:
(1), adopt conventional equipment and method that TiAl base alloy surface is carried out making Nano surface;
(2), TiAl base alloy behind the making Nano surface is carried out 500 ℃～800 ℃ low temperature carburizations, prepare the thick cementation zone of 4～9um at sample surfaces.
The method of TiAl base alloy surface nanometer is in the above-mentioned steps (1): step is following:
(1), titanium aluminum based metal compound line of material is cut into sample;
(2), sample surfaces is cleaned oven dry then;
(3), sample is put into high energy ball mill and carry out Surface Nanocrystalline; Using speed range is 200 rev/mins～350 rev/mins; Use the abrasion-proof steel ball size range to be 5mm～12mm, using ball material quality is 10: 1～40: 1 than scope, and the ball milling time range is 6 hours～24 hours.
Adopt the low-temperature surface method for carburizing of the titanium aluminum based metal compound material of technique scheme; Behind the TiAl base alloy surface nanometer since between the nano surface crystalline substance stress field of crystal boundary, highdensity dislocation room and the participation of formed high-volume fractional be that Elements Diffusion provides the ideal passage; Increase " active center " of treat surface; Thereby reduce temperature, the quickening carburizing speed of solid carburizing and improve depth of penetration and concentration; Effectively improve the effect of TiAl base alloy solid carburizing, improve its use properties.The present invention effectively improves the surface tissue of TiAl base alloy; Improve its fatigue resistance, wear-corrosion resistance; Be the carburizing treatment method that a kind of cost is low, efficient is high,, realize low temperature, quick, the darker denseer carburizing treatment of infiltration layer through in advance TiAl base alloy being implemented the nano surface modification.The invention has the beneficial effects as follows effective reduction carburizing temperature, protection cementing plant, energy-conserving and environment-protective.
In sum, the present invention is a kind of surface tissue of the effective TiAl of improvement base alloy, the low-temperature surface method for carburizing of the titanium aluminum based metal compound material that the cost that improves its fatigue resistance, wear-corrosion resistance is low, efficient is high.
Description of drawings
Fig. 1 is the schema of Surface Nanocrystalline and carburizing treatment.
Fig. 2 is the longitudinal section tissue topography photo before the carburizing treatment specimen surface nanometer.
Fig. 3 is first kind of longitudinal section tissue topography photo behind the carburizing treatment specimen surface nanometer.
Fig. 4 is second kind of longitudinal section tissue topography photo behind the carburizing treatment specimen surface nanometer.
Fig. 5 is the third longitudinal section tissue topography photo behind the carburizing treatment specimen surface nanometer.
Fig. 6 is the surface hardness value of the sample of process carburizing treatment under the making Nano surface condition.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Referring to Fig. 1, the low-temperature surface method for carburizing of titanium aluminum based metal compound material provided by the invention comprises the steps:
(1), adopt conventional equipment and method that TiAl base alloy surface is carried out making Nano surface;
(2), TiAl base alloy behind the making Nano surface is carried out 500 ℃～800 ℃ low temperature carburizations, prepare the thick cementation zone of 4～9um at sample surfaces.
Comparative Examples 1:
(1), TiAl base alloy is carried out solid carburizing;
(1.1), TiAl base alloy material sample wire is cut into the sample of 10mm * 10mm * 10mm;
(1.2), use the ultrasonic cleaning sample surfaces, put into dryer 55 degree insulations taking-up in 2 hours then;
(1.3) the TiAl base alloy that does not carry out making Nano surface is carried out 900 ℃ of carburizings, prepare the thick cementation zone of 1.5um at sample surfaces.Referring to Fig. 2,1 expression matrix among Fig. 2, Fig. 3, Fig. 4 and Fig. 5,2 expression cementation zones.
Embodiment 1:
(1), TiAl base alloy surface is carried out making Nano surface;
(1.1), TiAl base alloy material sample wire is cut into the sample of 8mm * 8mm * 8mm;
(1.2), use the ultrasonic cleaning sample surfaces, put into dryer 60 degree insulations taking-up in 2.5 hours then;
(1.3), sample put into high energy ball mill carry out Surface Nanocrystalline, using speed range is 200 rev/mins, uses the abrasion-proof steel ball size range to be 12mm, use ball material quality is 10: 1 than scope, the ball milling time range is 6 hours;
(2), TiAl base alloy behind the making Nano surface is carried out 800 ℃ of low temperature carburizations, prepare the thick cementation zone of 4um at sample surfaces.
Referring to Fig. 3, Fig. 4 and Fig. 5; Behind the TiAl base alloy surface nanometer since between the nano surface crystalline substance stress field of crystal boundary, highdensity dislocation room and the participation of formed high-volume fractional be that Elements Diffusion provides the ideal passage; Increase " active center " of treat surface; Thereby reduce temperature, the quickening carburizing speed of solid carburizing and improve depth of penetration and concentration, effectively improve the effect of TiAl base alloy solid carburizing, improve its use properties.Ti embodiment 2:
(1), TiAl base alloy surface is carried out making Nano surface;
(1.1), titanium aluminum based metal compound material sample line is cut into the sample of 10mm * 10mm * 10m;
(1.2), use the ultrasonic cleaning sample surfaces, put into dryer 65 degree insulations taking-up in 3 hours then;
(1.3), sample put into high energy ball mill carry out Surface Nanocrystalline, using speed range is 350 rev/mins, uses the abrasion-proof steel ball size range to be 6mm, use ball material quality is 20: 1 than scope, the ball milling time range is 18 hours;
(2), TiAl base alloy behind the making Nano surface is carried out 600 ℃ of low temperature carburizations, prepare the thick cementation zone of 4.5um at sample surfaces.
Embodiment 3:
(1), TiAl base alloy surface is carried out making Nano surface;
(1.1), titanium aluminum based metal compound material sample line is cut into the sample of 12mm * 12mm * 12m;
(1.2), use the ultrasonic cleaning sample surfaces, put into dryer 65 degree insulations taking-up in 4 hours then;
(1.3), sample put into high energy ball mill carry out Surface Nanocrystalline, using speed range is 350 rev/mins, uses the abrasion-proof steel ball size range to be 5mm, use ball material quality is 40: 1 than scope, the ball milling time range is 24 hours;
(2), TiAl base alloy behind the making Nano surface is carried out 500 ℃ of low temperature carburizations, prepare the thick cementation zone of 9um at sample surfaces.
Claims (2)
1. the low-temperature surface method for carburizing of a titanium aluminum based metal compound material is characterized in that: comprise the steps:
(1), adopt conventional equipment and method that TiAl base alloy surface is carried out making Nano surface;
(2), TiAl base alloy behind the making Nano surface is carried out 500 ℃～800 ℃ low temperature carburizations, prepare the thick cementation zone of 4～9um at sample surfaces.
2. the low-temperature surface method for carburizing of titanium aluminum based metal compound material according to claim 1 is characterized in that: the method for TiAl base alloy surface nanometer is in the above-mentioned steps (1): step is following:
(1), titanium aluminum based metal compound line of material is cut into sample;
(2), sample surfaces is cleaned oven dry then;
(3), sample is put into high energy ball mill and carry out Surface Nanocrystalline; Using speed range is 200 rev/mins～350 rev/mins; Use the abrasion-proof steel ball size range to be 5mm～12mm, using ball material quality is 10: 1～40: 1 than scope, and the ball milling time range is 6 hours～24 hours.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105312555A (en) * | 2015-10-29 | 2016-02-10 | 江苏恒尚动力高科有限公司 | Supercharger turbine materials and preparation method thereof |
| CN105734486A (en) * | 2016-03-09 | 2016-07-06 | 武汉大学 | Preparation method for liquid aluminizing composite coating on surface of titanium alloy |
| CN109338283A (en) * | 2018-12-05 | 2019-02-15 | 武汉轻工大学 | A kind of pack carburizing prepares the method and porous material of porous material |
| CN112962047A (en) * | 2021-03-11 | 2021-06-15 | 湘潭大学 | Method for preparing Ti-Al system intermediate phase/Ti-Al-C system MAX phase composite coating on surface of titanium or titanium alloy |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1699617A (en) * | 2005-06-29 | 2005-11-23 | 上海大学 | Technological process for surface low temperature boriding of low carbon steel |
| CN101457322A (en) * | 2009-01-07 | 2009-06-17 | 济南大学 | TiAl base pressure booster turbo and method for producing the same |
-
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1699617A (en) * | 2005-06-29 | 2005-11-23 | 上海大学 | Technological process for surface low temperature boriding of low carbon steel |
| CN101457322A (en) * | 2009-01-07 | 2009-06-17 | 济南大学 | TiAl base pressure booster turbo and method for producing the same |
Non-Patent Citations (2)
| Title |
|---|
| 何利舰等: "钛及钛合金的表面处理技术新进展", 《上海金属》 * |
| 江垚等: "TiAl基合金的表面渗碳行为及其机理", 《材料研究学报》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105312555A (en) * | 2015-10-29 | 2016-02-10 | 江苏恒尚动力高科有限公司 | Supercharger turbine materials and preparation method thereof |
| CN105734486A (en) * | 2016-03-09 | 2016-07-06 | 武汉大学 | Preparation method for liquid aluminizing composite coating on surface of titanium alloy |
| CN105734486B (en) * | 2016-03-09 | 2018-05-29 | 武汉大学 | A kind of titanium alloy surface liquid expands the preparation method of aluminising composite coating |
| CN109338283A (en) * | 2018-12-05 | 2019-02-15 | 武汉轻工大学 | A kind of pack carburizing prepares the method and porous material of porous material |
| CN112962047A (en) * | 2021-03-11 | 2021-06-15 | 湘潭大学 | Method for preparing Ti-Al system intermediate phase/Ti-Al-C system MAX phase composite coating on surface of titanium or titanium alloy |
| CN112962047B (en) * | 2021-03-11 | 2023-03-14 | 湘潭大学 | Method for preparing Ti-Al system intermediate phase/Ti-Al-C system MAX phase composite coating on surface of titanium or titanium alloy |
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Application publication date: 20120411 |